<%@ page language="java" contentType="text/html; charset=UTF-8"  pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<%@include file="/header.jsp" %>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link href="${base}js/webuploader/webuploader.css" rel="stylesheet" type="text/css" />
<link href="${base}js/webuploader/demo.css" rel="stylesheet" type="text/css" />
<script type="text/javascript"  language="text/javascript" src="${base}js/webuploader/webuploader.min.js"></script>
<title>附件管理页面</title>
<script type="text/javascript">
  var index=1;
  var extensions='${extensions}'?'${extensions}':'gif,jpg,jpeg,bmp,png';
  var mimeTypes='${mimeTypes}'?'${mimeTypes}':'image/jpg,image/jpeg,image/png';
  var formData={foreignUuid:'${foreignUuid}'};
  $(function(){
	  $wrap = $('#uploader'),
      // 图片容器
      $queue = $('<ul class="filelist"></ul>').appendTo( $wrap.find('.queueList') ),
      // 状态栏，包括进度和控制按钮
      $statusBar = $wrap.find('.statusBar'),
      // 文件总体选择信息。
      $info = $statusBar.find('.info'),
      // 上传按钮
      $upload = $wrap.find('.uploadBtn'),
      // 没选择文件之前的内容。
      $placeHolder = $wrap.find('.placeholder'),
      // 总体进度条
      $progress = $statusBar.find('.progress').hide(),
      // 添加的文件数量
      fileCount = 0,
      // 添加的文件总大小
      fileSize = 0,
      // 优化retina, 在retina下这个值是2
      ratio = window.devicePixelRatio || 1,
      // 缩略图大小
      thumbnailWidth = 110 * ratio,
      thumbnailHeight = 110 * ratio,
      // 可能有pedding, ready, uploading, confirm, done.
      state = 'pedding',
      // 所有文件的进度信息，key为file id
      percentages = {},
      supportTransition = (function(){
          var s = document.createElement('p').style,
              r = 'transition' in s ||
                    'WebkitTransition' in s ||
                    'MozTransition' in s ||
                    'msTransition' in s ||
                    'OTransition' in s;
          s = null;
          return r;
      })();
      // WebUploader实例
    var  uploader;
  if ( !WebUploader.Uploader.support() ) {
	  myAlert("错误信息", '上传组件不支持您的浏览器！如果你使用的是IE浏览器，请尝试升级 flash 播放器',"e");
      throw new Error( 'WebUploader does not support the browser you are using.' );
  }
  // 实例化
  uploader = WebUploader.create({
      pick: {
          id: '#filePicker',
          label: '选择文件'
      },
      dnd: '#uploader .queueList',
      paste: document.body,
      accept: {
          title: '',
          extensions:extensions,
          mimeTypes:mimeTypes
      },
      swf:'${base}/js/webuploader/Uploader.swf',
      disableGlobalDnd: true,
      chunked: true,
      formData:formData,
      server: '${base}sysFile/fileUpload',
      fileNumLimit: 300,
      fileSizeLimit: 200* 1024 * 1024,// 50 M
      fileSingleSizeLimit: 50 * 1024 * 1024 // 50 M
  });

  // 添加“添加文件”的按钮，
  uploader.addButton({
      id: '#filePicker2',
      label: '继续添加'
  });

  // 当有文件添加进来时执行，负责view的创建
  function addFile( file ) {
      var $li = $( '<li id="' + file.id + '">' +
              '<p class="imgWrap"></p>'+
              '<p class="progress"><span></span></p>' +
              '<p class="title" title="'+file.name+'">' + file.name + '</p>' +
              '</li>' ),
          $btns = $('<div class="file-panel">' +
              '<span class="cancel">删除</span>' +
              '<span class="rotateRight">向右旋转</span>' +
              '<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ),
          $prgress = $li.find('p.progress span'),
          $wrap = $li.find( 'p.imgWrap' ),
          $info = $('<p class="error"></p>'),

          showError = function( code ) {
              switch( code ) {
                  case 'exceed_size':
                      text = '文件大小超出';
                      break;

                  case 'interrupt':
                      text = '上传暂停';
                      break;

                  default:
                      text = '上传失败，请重试';
                      break;
              }

              $info.text( text ).appendTo( $li );
          };

      if ( file.getStatus() === 'invalid' ) {
          showError( file.statusText );
      } else {
          // @todo lazyload
          $wrap.text( '预览中' );
          uploader.makeThumb( file, function( error, src ) {
              if ( error ) {
                  $wrap.text( '不能预览' );
                  return;
              }

              var img = $('<img src="'+src+'">');
              $wrap.empty().append( img );
          }, thumbnailWidth, thumbnailHeight );

          percentages[ file.id ] = [ file.size, 0 ];
          file.rotation = 0;
      }

      file.on('statuschange', function( cur, prev ) {
          if ( prev === 'progress' ) {
              $prgress.hide().width(0);
          } else if ( prev === 'queued' ) {
              $li.off( 'mouseenter mouseleave' );
              $btns.remove();
          }
          // 成功
          if ( cur === 'error' || cur === 'invalid' ) {
              //console.log( file.statusText );
              showError( file.statusText );
              percentages[ file.id ][ 1 ] = 1;
          } else if ( cur === 'interrupt' ) {
              showError( 'interrupt' );
          } else if ( cur === 'queued' ) {
              percentages[ file.id ][ 1 ] = 0;
          } else if ( cur === 'progress' ) {
              $info.remove();
              $prgress.css('display', 'block');
          } else if ( cur === 'complete' ) {
              $li.append( '<span class="success"></span>' );
          }

          $li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
      });

      $li.on( 'mouseenter', function() {
          $btns.stop().animate({height: 30});
      });

      $li.on( 'mouseleave', function() {
          $btns.stop().animate({height: 0});
      });

      $btns.on( 'click', 'span', function() {
          var index = $(this).index(),
              deg;
          switch ( index ) {
              case 0:
                  uploader.removeFile( file );
                  return;
              case 1:
                  file.rotation += 90;
                  break;
              case 2:
                  file.rotation -= 90;
                  break;
          }

          if ( supportTransition ) {
              deg = 'rotate(' + file.rotation + 'deg)';
              $wrap.css({
                  '-webkit-transform': deg,
                  '-mos-transform': deg,
                  '-o-transform': deg,
                  'transform': deg
              });
          } else {
              $wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');
              // use jquery animate to rotation
              // $({
              //     rotation: rotation
              // }).animate({
              //     rotation: file.rotation
              // }, {
              //     easing: 'linear',
              //     step: function( now ) {
              //         now = now * Math.PI / 180;

              //         var cos = Math.cos( now ),
              //             sin = Math.sin( now );

              //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
              //     }
              // });
          }
      });

      $li.appendTo( $queue );
  }

  // 负责view的销毁
  function removeFile( file ) {
      var $li = $('#'+file.id);

      delete percentages[ file.id ];
      updateTotalProgress();
      $li.off().find('.file-panel').off().end().remove();
  }

  function updateTotalProgress() {
      var loaded = 0,
          total = 0,
          spans = $progress.children(),
          percent;

      $.each( percentages, function( k, v ) {
          total += v[ 0 ];
          loaded += v[ 0 ] * v[ 1 ];
      } );
      percent = total ? loaded / total : 0;
      spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
      spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
      updateStatus();
  }

  function updateStatus() {
      var text = '', stats;
      if ( state === 'ready' ) {
          text = '选中' + fileCount + '个文件，共' +
                  WebUploader.formatSize( fileSize ) + '。';
      } else if ( state === 'confirm' ) {
          stats = uploader.getStats();
          if ( stats.uploadFailNum ) {
              text = '已成功上传' + stats.successNum+ '个文件，'+
                  stats.uploadFailNum + '个文件上传失败，<a class="retry" href="#">重新上传</a>失败文件或<a class="ignore" href="#">忽略</a>'
          }
      } else {
          stats = uploader.getStats();
          text = '共' + fileCount + '个（' +
                  WebUploader.formatSize( fileSize )  +
                  '），已上传' + stats.successNum + '个';
          if ( stats.uploadFailNum ) {
              text += '，失败' + stats.uploadFailNum + '个';
          }
      }
      $info.html( text );
  }
  
  function setState( val ) {
      var file, stats;
      if ( val === state ) {
          return;
      }
      $upload.removeClass( 'state-' + state );
      $upload.addClass( 'state-' + val );
      state = val;
      switch ( state ) {
          case 'pedding':
              $placeHolder.removeClass( 'element-invisible' );
              $queue.parent().removeClass('filled');
              $queue.hide();
              $statusBar.addClass( 'element-invisible' );
              uploader.refresh();
              break;
          case 'ready':
              $placeHolder.addClass( 'element-invisible' );
              $( '#filePicker2' ).removeClass( 'element-invisible');
              $queue.parent().addClass('filled');
              $queue.show();
              $statusBar.removeClass('element-invisible');
              uploader.refresh();
              break;
          case 'uploading':
              $( '#filePicker2' ).addClass( 'element-invisible' );
              $progress.show();
              $upload.text( '暂停上传' );
              break;
          case 'paused':
              $progress.show();
              $upload.text( '继续上传' );
              break;

          case 'confirm':
              $progress.hide();
              $upload.text( '开始上传' ).addClass( 'disabled' );
              stats = uploader.getStats();
              if ( stats.successNum && !stats.uploadFailNum ) {
                  setState( 'finish' );
                  return;
              }
              break;
          case 'finish':
              stats = uploader.getStats();
              if ( stats.successNum ) {
           	  myAlert("提示信息", '上传成功',"i"); 
           	  closeMyDialog({flag:true});
              } else {
                  // 没有成功的图片，重设
                  state = 'done';
                  location.reload();
              }
              break;
      }

      updateStatus();
  }

  uploader.onUploadProgress = function( file, percentage ) {
      var $li = $('#'+file.id),
          $percent = $li.find('.progress span');
      $percent.css( 'width', percentage * 100 + '%' );
      percentages[ file.id ][ 1 ] = percentage;
      updateTotalProgress();
  };

  uploader.onFileQueued = function( file ){
      fileCount++;
      fileSize += file.size;
      if ( fileCount === 1 ) {
          $placeHolder.addClass( 'element-invisible' );
          $statusBar.show();
      }
      addFile( file );
      setState( 'ready' );
      updateTotalProgress();
  };

  uploader.onFileDequeued = function( file ) {
      fileCount--;
      fileSize -= file.size;

      if ( !fileCount ) {
          setState( 'pedding' );
      }
      removeFile( file );
      updateTotalProgress();
  };

  uploader.on( 'all', function( type ){
      var stats;
      switch( type ) {
          case 'uploadFinished':
              setState( 'confirm' );
              break;
          case 'startUpload':
              setState( 'uploading' );
              break;
          case 'stopUpload':
              setState( 'paused' );
              break;
      }});
  uploader.onError = function( code ) {
	  if(code=='Q_EXCEED_NUM_LIMIT')
		  myAlert("错误信息", '添加的文件数量超出。 ',"e");
	  else if(code=='Q_EXCEED_SIZE_LIMIT')
		  myAlert("错误信息", '添加的文件总大小超出。 ',"e");
	  else if(code=='Q_TYPE_DENIED')
		  myAlert("错误信息", '添加的文件类型不满足。 ',"e");
	  else if(code=='F_DUPLICATE')
		  myAlert("错误信息", '添加的文件已被选择。 ',"e");
	  else
		myAlert("错误信息", '上传出错。 ',"e");
  };

  $upload.on('click', function() {
      if ( $(this).hasClass( 'disabled' ) ) {
          return false;
      }
      if ( state === 'ready' ) {
          uploader.upload();
      } else if ( state === 'paused' ) {
          uploader.upload();
      } else if ( state === 'uploading' ) {
          uploader.stop();
      }
  });
  
 
  $info.on( 'click', '.retry', function() {
      uploader.retry();
  } );

  $info.on( 'click', '.ignore', function() {
      //alert( 'todo' );
  });
  $upload.addClass( 'state-' + state );
  updateTotalProgress();
  });
  </script>
</head>
<body fit="true">
    <div id="uploader" class="wu-example">
    <div class="queueList">
        <div id="dndArea" class="placeholder">
            <div id="filePicker"></div>
            <p>或将文件拖到这里，单次最多可选300个</p>
        </div>
    </div>
    <div class="statusBar" style="display:none;">
        <div class="progress">
            <span class="text">0%</span>
            <span class="percentage"></span>
        </div><div class="info"></div>
        <div class="btns">
            <div id="filePicker2"></div><div class="uploadBtn">开始上传</div>
        </div>
    </div>
    </div>
</body>
</html>